#ifndef _WX_DB_H_
#define _WX_DB_H_

#define OLD_GETCOLUMNS 1
#define EXPERIMENTAL_WXDB_FUNCTIONS 1

#include "wx/defs.h"
#include "wx/string.h"

#define SQL_C_WXCHAR SQL_C_WCHAR

#ifdef __DIGITALMARS__
typedef wxChar SQLTCHAR;
#endif

typedef float SFLOAT;
typedef double SDOUBLE;
typedef unsigned int UINT;
#define ULONG UDWORD

enum enumDummy {enumDum1};

#ifndef SQL_C_BOOLEAN
#define SQL_C_BOOLEAN(datatype) (sizeof(datatype) == 1 ? SQL_C_UTINYINT : (sizeof(datatype) == 2 ? SQL_C_USHORT : SQL_C_ULONG))
#endif

#ifndef SQL_C_ENUM
#define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
#endif

#ifndef SQL_C_BLOB
#ifdef SQL_C_BINARY
#define SQL_C_BLOB SQL_C_BINARY
#endif
#endif

#ifndef _WIN64
#ifndef SQLLEN
#define SQLLEN SQLINTEGER
#endif
#ifndef SQLULEN
#define SQLULEN SQLUINTEGER
#endif
#endif

const int wxDB_PATH_MAX                 = 254;

extern WXDLLIMPEXP_DATA_ODBC( wxChar const * ) SQL_LOG_FILENAME;
extern WXDLLIMPEXP_DATA_ODBC( wxChar const * ) SQL_CATALOG_FILENAME;

// Database Globals
const int DB_TYPE_NAME_LEN            = 40;
const int DB_MAX_STATEMENT_LEN        = 4096;
const int DB_MAX_WHERE_CLAUSE_LEN     = 2048;
const int DB_MAX_ERROR_MSG_LEN        = 512;
const int DB_MAX_ERROR_HISTORY        = 5;
const int DB_MAX_TABLE_NAME_LEN       = 128;
const int DB_MAX_COLUMN_NAME_LEN      = 128;

const int DB_DATA_TYPE_VARCHAR        = 1;
const int DB_DATA_TYPE_INTEGER        = 2;
const int DB_DATA_TYPE_FLOAT          = 3;
const int DB_DATA_TYPE_DATE           = 4;
const int DB_DATA_TYPE_BLOB           = 5;
const int DB_DATA_TYPE_MEMO           = 6;

const int DB_SELECT_KEYFIELDS         = 1;
const int DB_SELECT_WHERE             = 2;
const int DB_SELECT_MATCHING          = 3;
const int DB_SELECT_STATEMENT         = 4;

const int DB_UPD_KEYFIELDS            = 1;
const int DB_UPD_WHERE                = 2;

const int DB_DEL_KEYFIELDS            = 1;
const int DB_DEL_WHERE                = 2;
const int DB_DEL_MATCHING             = 3;

const int DB_WHERE_KEYFIELDS          = 1;
const int DB_WHERE_MATCHING           = 2;

const int DB_GRANT_SELECT             = 1;
const int DB_GRANT_INSERT             = 2;
const int DB_GRANT_UPDATE             = 4;
const int DB_GRANT_DELETE             = 8;
const int DB_GRANT_ALL                = DB_GRANT_SELECT | DB_GRANT_INSERT | DB_GRANT_UPDATE | DB_GRANT_DELETE;

// ODBC Error codes (derived from ODBC SqlState codes)
enum wxODBC_ERRORS {
  DB_FAILURE                        = 0,
  DB_SUCCESS                        = 1,
  DB_ERR_NOT_IN_USE,
  DB_ERR_GENERAL_WARNING,                            // SqlState = '01000'
  DB_ERR_DISCONNECT_ERROR,                           // SqlState = '01002'
  DB_ERR_DATA_TRUNCATED,                             // SqlState = '01004'
  DB_ERR_PRIV_NOT_REVOKED,                           // SqlState = '01006'
  DB_ERR_INVALID_CONN_STR_ATTR,                      // SqlState = '01S00'
  DB_ERR_ERROR_IN_ROW,                               // SqlState = '01S01'
  DB_ERR_OPTION_VALUE_CHANGED,                       // SqlState = '01S02'
  DB_ERR_NO_ROWS_UPD_OR_DEL,                         // SqlState = '01S03'
  DB_ERR_MULTI_ROWS_UPD_OR_DEL,                      // SqlState = '01S04'
  DB_ERR_WRONG_NO_OF_PARAMS,                         // SqlState = '07001'
  DB_ERR_DATA_TYPE_ATTR_VIOL,                        // SqlState = '07006'
  DB_ERR_UNABLE_TO_CONNECT,                          // SqlState = '08001'
  DB_ERR_CONNECTION_IN_USE,                          // SqlState = '08002'
  DB_ERR_CONNECTION_NOT_OPEN,                        // SqlState = '08003'
  DB_ERR_REJECTED_CONNECTION,                        // SqlState = '08004'
  DB_ERR_CONN_FAIL_IN_TRANS,                         // SqlState = '08007'
  DB_ERR_COMM_LINK_FAILURE,                          // SqlState = '08S01'
  DB_ERR_INSERT_VALUE_LIST_MISMATCH,                 // SqlState = '21S01'
  DB_ERR_DERIVED_TABLE_MISMATCH,                     // SqlState = '21S02'
  DB_ERR_STRING_RIGHT_TRUNC,                         // SqlState = '22001'
  DB_ERR_NUMERIC_VALUE_OUT_OF_RNG,                   // SqlState = '22003'
  DB_ERR_ERROR_IN_ASSIGNMENT,                        // SqlState = '22005'
  DB_ERR_DATETIME_FLD_OVERFLOW,                      // SqlState = '22008'
  DB_ERR_DIVIDE_BY_ZERO,                             // SqlState = '22012'
  DB_ERR_STR_DATA_LENGTH_MISMATCH,                   // SqlState = '22026'
  DB_ERR_INTEGRITY_CONSTRAINT_VIOL,                  // SqlState = '23000'
  DB_ERR_INVALID_CURSOR_STATE,                       // SqlState = '24000'
  DB_ERR_INVALID_TRANS_STATE,                        // SqlState = '25000'
  DB_ERR_INVALID_AUTH_SPEC,                          // SqlState = '28000'
  DB_ERR_INVALID_CURSOR_NAME,                        // SqlState = '34000'
  DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL,                // SqlState = '37000'
  DB_ERR_DUPLICATE_CURSOR_NAME,                      // SqlState = '3C000'
  DB_ERR_SERIALIZATION_FAILURE,                      // SqlState = '40001'
  DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2,               // SqlState = '42000'
  DB_ERR_OPERATION_ABORTED,                          // SqlState = '70100'
  DB_ERR_UNSUPPORTED_FUNCTION,                       // SqlState = 'IM001'
  DB_ERR_NO_DATA_SOURCE,                             // SqlState = 'IM002'
  DB_ERR_DRIVER_LOAD_ERROR,                          // SqlState = 'IM003'
  DB_ERR_SQLALLOCENV_FAILED,                         // SqlState = 'IM004'
  DB_ERR_SQLALLOCCONNECT_FAILED,                     // SqlState = 'IM005'
  DB_ERR_SQLSETCONNECTOPTION_FAILED,                 // SqlState = 'IM006'
  DB_ERR_NO_DATA_SOURCE_DLG_PROHIB,                  // SqlState = 'IM007'
  DB_ERR_DIALOG_FAILED,                              // SqlState = 'IM008'
  DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL,             // SqlState = 'IM009'
  DB_ERR_DATA_SOURCE_NAME_TOO_LONG,                  // SqlState = 'IM010'
  DB_ERR_DRIVER_NAME_TOO_LONG,                       // SqlState = 'IM011'
  DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR,                // SqlState = 'IM012'
  DB_ERR_TRACE_FILE_ERROR,                           // SqlState = 'IM013'
  DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS,               // SqlState = 'S0001'
  DB_ERR_TABLE_NOT_FOUND,                            // SqlState = 'S0002'
  DB_ERR_INDEX_ALREADY_EXISTS,                       // SqlState = 'S0011'
  DB_ERR_INDEX_NOT_FOUND,                            // SqlState = 'S0012'
  DB_ERR_COLUMN_ALREADY_EXISTS,                      // SqlState = 'S0021'
  DB_ERR_COLUMN_NOT_FOUND,                           // SqlState = 'S0022'
  DB_ERR_NO_DEFAULT_FOR_COLUMN,                      // SqlState = 'S0023'
  DB_ERR_GENERAL_ERROR,                              // SqlState = 'S1000'
  DB_ERR_MEMORY_ALLOCATION_FAILURE,                  // SqlState = 'S1001'
  DB_ERR_INVALID_COLUMN_NUMBER,                      // SqlState = 'S1002'
  DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE,                  // SqlState = 'S1003'
  DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE,                 // SqlState = 'S1004'
  DB_ERR_OPERATION_CANCELLED,                        // SqlState = 'S1008'
  DB_ERR_INVALID_ARGUMENT_VALUE,                     // SqlState = 'S1009'
  DB_ERR_FUNCTION_SEQUENCE_ERROR,                    // SqlState = 'S1010'
  DB_ERR_OPERATION_INVALID_AT_THIS_TIME,             // SqlState = 'S1011'
  DB_ERR_INVALID_TRANS_OPERATION_CODE,               // SqlState = 'S1012'
  DB_ERR_NO_CURSOR_NAME_AVAIL,                       // SqlState = 'S1015'
  DB_ERR_INVALID_STR_OR_BUF_LEN,                     // SqlState = 'S1090'
  DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE,               // SqlState = 'S1091'
  DB_ERR_OPTION_TYPE_OUT_OF_RANGE,                   // SqlState = 'S1092'
  DB_ERR_INVALID_PARAM_NO,                           // SqlState = 'S1093'
  DB_ERR_INVALID_SCALE_VALUE,                        // SqlState = 'S1094'
  DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE,                 // SqlState = 'S1095'
  DB_ERR_INF_TYPE_OUT_OF_RANGE,                      // SqlState = 'S1096'
  DB_ERR_COLUMN_TYPE_OUT_OF_RANGE,                   // SqlState = 'S1097'
  DB_ERR_SCOPE_TYPE_OUT_OF_RANGE,                    // SqlState = 'S1098'
  DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE,                 // SqlState = 'S1099'
  DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE,        // SqlState = 'S1100'
  DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE,          // SqlState = 'S1101'
  DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE,              // SqlState = 'S1103'
  DB_ERR_INVALID_PRECISION_VALUE,                    // SqlState = 'S1104'
  DB_ERR_INVALID_PARAM_TYPE,                         // SqlState = 'S1105'
  DB_ERR_FETCH_TYPE_OUT_OF_RANGE,                    // SqlState = 'S1106'
  DB_ERR_ROW_VALUE_OUT_OF_RANGE,                     // SqlState = 'S1107'
  DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE,            // SqlState = 'S1108'
  DB_ERR_INVALID_CURSOR_POSITION,                    // SqlState = 'S1109'
  DB_ERR_INVALID_DRIVER_COMPLETION,                  // SqlState = 'S1110'
  DB_ERR_INVALID_BOOKMARK_VALUE,                     // SqlState = 'S1111'
  DB_ERR_DRIVER_NOT_CAPABLE,                         // SqlState = 'S1C00'
  DB_ERR_TIMEOUT_EXPIRED                             // SqlState = 'S1T00'
};

#ifndef MAXNAME
#define MAXNAME         31
#endif

#ifndef SQL_MAX_AUTHSTR_LEN
// There does not seem to be a standard for this, so I am
// defaulting to the value that MS uses
#define SQL_MAX_AUTHSTR_LEN MAXNAME
#endif

#ifndef SQL_MAX_CONNECTSTR_LEN
#define SQL_MAX_CONNECTSTR_LEN 1024
#endif


class WXDLLIMPEXP_ODBC wxDbConnectInf {
  private:
    bool freeHenvOnDestroy;
    bool useConnectionStr;

  public:
    HENV Henv;
    wxChar Dsn[SQL_MAX_DSN_LENGTH + 1];                // Data Source Name
    wxChar Uid[SQL_MAX_USER_NAME_LEN + 1];             // User ID
    wxChar AuthStr[SQL_MAX_AUTHSTR_LEN + 1];           // Authorization string (password)
    wxChar ConnectionStr[SQL_MAX_CONNECTSTR_LEN + 1];  // Connection string (password)
    wxString Description;                              // Not sure what the max length is
    wxString FileType;                                 // Not sure what the max length is
    wxString DefaultDir;                               // Directory that db file resides in
  public:
    wxDbConnectInf();
    wxDbConnectInf( HENV henv, const wxString &dsn, const wxString &userID = wxEmptyString,
                    const wxString &password = wxEmptyString, const wxString &defaultDir = wxEmptyString,
                    const wxString &description = wxEmptyString, const wxString &fileType = wxEmptyString );

    ~wxDbConnectInf();

    bool             Initialize();

    bool             AllocHenv();
    void             FreeHenv();

    // Accessors
    const HENV       &GetHenv()          { return Henv; }

    const wxChar    *GetDsn()           { return Dsn; }

    const wxChar    *GetUid()           { return Uid; }
    const wxChar    *GetUserID()        { return Uid; }

    const wxChar    *GetAuthStr()       { return AuthStr; }
    const wxChar    *GetPassword()      { return AuthStr; }

    const wxChar    *GetConnectionStr() { return ConnectionStr; }
    bool             UseConnectionStr() { return useConnectionStr; }

    const wxChar    *GetDescription()   { return Description; }
    const wxChar    *GetFileType()      { return FileType; }
    const wxChar    *GetDefaultDir()    { return DefaultDir; }

    void             SetHenv( const HENV henv )               { Henv = henv; }

    void             SetDsn( const wxString &dsn );

    void             SetUserID( const wxString &userID );
    void             SetUid( const wxString &uid )            { SetUserID( uid ); }

    void             SetPassword( const wxString &password );
    void             SetAuthStr( const wxString &authstr )    { SetPassword( authstr ); }

    void             SetConnectionStr( const wxString &connectStr );

    void             SetDescription( const wxString &desc )   { Description   = desc;     }
    void             SetFileType( const wxString &fileType )  { FileType      = fileType; }
    void             SetDefaultDir( const wxString &defDir )  { DefaultDir    = defDir;   }
};  // class wxDbConnectInf


struct WXDLLIMPEXP_ODBC wxDbSqlTypeInfo {
  wxString    TypeName;
  SWORD       FsqlType;
  long        Precision;
  short       CaseSensitive;
  short       MaximumScale;
};


class WXDLLIMPEXP_ODBC wxDbColFor {
  public:
    wxString       s_Field;              // Formatted String for Output
    wxString       s_Format[7];          // Formatted Objects - TIMESTAMP has the biggest (7)
    wxString       s_Amount[7];          // Formatted Objects - amount of things that can be formatted
    int            i_Amount[7];          // Formatted Objects - TT MM YYYY HH MM SS m
    int            i_Nation;             // 0 = timestamp , 1=EU, 2=UK, 3=International, 4=US
    int            i_dbDataType;         // conversion of the 'sqlDataType' to the generic data type used by these classes
    SWORD          i_sqlDataType;

    wxDbColFor();
    ~wxDbColFor() {}

    void           Initialize();
    int            Format( int Nation, int dbDataType, SWORD sqlDataType, short columnLength, short decimalDigits );
};


class WXDLLIMPEXP_ODBC wxDbColInf {
  public:
    wxChar       catalog[128 + 1];
    wxChar       schema[128 + 1];
    wxChar       tableName[DB_MAX_TABLE_NAME_LEN + 1];
    wxChar       colName[DB_MAX_COLUMN_NAME_LEN + 1];
    SWORD        sqlDataType;
    wxChar       typeName[128 + 1];
    SWORD        columnLength;
    SWORD        bufferSize;
    short        decimalDigits;
    short        numPrecRadix;
    short        nullable;
    wxChar       remarks[254 + 1];
    int          dbDataType;  // conversion of the 'sqlDataType' to the generic data type used by these classes
    int          PkCol;       // Primary key column       0=No; 1= First Key, 2 = Second Key etc.
    wxChar       PkTableName[DB_MAX_TABLE_NAME_LEN + 1]; // Tables that use this PKey as a FKey
    int          FkCol;       // Foreign key column       0=No; 1= First Key, 2 = Second Key etc.
    wxChar       FkTableName[DB_MAX_TABLE_NAME_LEN + 1]; // Foreign key table name
    wxDbColFor  *pColFor;                              // How should this columns be formatted

    wxDbColInf();
    ~wxDbColInf();

    bool Initialize();
};


class WXDLLIMPEXP_ODBC wxDbTableInf {      // Description of a Table
  public:
    wxChar      tableName[DB_MAX_TABLE_NAME_LEN + 1];
    wxChar      tableType[254 + 1];         // "TABLE" or "SYSTEM TABLE" etc.
    wxChar      tableRemarks[254 + 1];
    UWORD       numCols;                    // How many Columns does this Table have: GetColumnCount(..);
    wxDbColInf *pColInf;                    // pColInf = NULL ; User can later call GetColumns(..);

    wxDbTableInf();
    ~wxDbTableInf();

    bool             Initialize();
};


class WXDLLIMPEXP_ODBC wxDbInf {   // Description of a Database
  public:
    wxChar        catalog[128 + 1];
    wxChar        schema[128 + 1];
    int           numTables;           // How many tables does this database have
    wxDbTableInf *pTableInf;           // pTableInf = new wxDbTableInf[numTables];
    wxDbInf();
    ~wxDbInf();
    bool Initialize();
};


enum wxDbSqlLogState {
  sqlLogOFF,
  sqlLogON
};

enum wxDBMS {
  dbmsUNIDENTIFIED,
  dbmsORACLE,
  dbmsSYBASE_ASA,        // Adaptive Server Anywhere
  dbmsSYBASE_ASE,        // Adaptive Server Enterprise
  dbmsMS_SQL_SERVER,
  dbmsMY_SQL,
  dbmsPOSTGRES,
  dbmsACCESS,
  dbmsDBASE,
  dbmsINFORMIX,
  dbmsVIRTUOSO,
  dbmsDB2,
  dbmsINTERBASE,
  dbmsPERVASIVE_SQL,
  dbmsXBASE_SEQUITER,
  dbmsFIREBIRD,
  dbmsMAXDB,
  dbmsFuture1,
  dbmsFuture2,
  dbmsFuture3,
  dbmsFuture4,
  dbmsFuture5,
  dbmsFuture6,
  dbmsFuture7,
  dbmsFuture8,
  dbmsFuture9,
  dbmsFuture10
};

extern WXDLLIMPEXP_DATA_ODBC( wxChar )
DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN + 1];


class WXDLLIMPEXP_ODBC wxDb {
  private:
    bool             dbIsOpen;
    bool             dbIsCached;      // Was connection created by caching functions
    bool             dbOpenedWithConnectionString;  // Was the database connection opened with a connection string
    wxString         dsn;             // Data source name
    wxString         uid;             // User ID
    wxString         authStr;         // Authorization string (password)
    wxString         inConnectionStr; // Connection string used to connect to the database
    wxString         outConnectionStr;// Connection string returned by the database when a connection is successfully opened
    FILE            *fpSqlLog;        // Sql Log file pointer
    wxDbSqlLogState  sqlLogState;     // On or Off
    bool             fwdOnlyCursors;
    wxDBMS           dbmsType;        // Type of datasource - i.e. Oracle, dBase, SQLServer, etc

    // Private member functions
    bool             getDbInfo( bool failOnDataTypeUnsupported = true );
    bool             getDataTypeInfo( SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo );
    bool             setConnectionOptions( void );
    void             logError( const wxString &errMsg, const wxString &SQLState );
    const wxChar    *convertUserID( const wxChar *userID, wxString &UserID );
    bool             determineDataTypes( bool failOnDataTypeUnsupported );
    void             initialize();
    bool             open( bool failOnDataTypeUnsupported = true );
    HENV  henv;        // ODBC Environment handle
    HDBC  hdbc;        // ODBC DB Connection handle
    HSTMT hstmt;       // ODBC Statement handle
    bool silent;
    unsigned int nTables;
    wxDbSqlTypeInfo typeInfVarchar;
    wxDbSqlTypeInfo typeInfInteger;
    wxDbSqlTypeInfo typeInfFloat;
    wxDbSqlTypeInfo typeInfDate;
    wxDbSqlTypeInfo typeInfBlob;
    wxDbSqlTypeInfo typeInfMemo;

  public:
    void setCached( bool cached )  { dbIsCached = cached; }
    bool IsCached() { return dbIsCached; }
    bool GetDataTypeInfo( SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo ) { return getDataTypeInfo( fSqlType, structSQLTypeInfo ); }
    struct {
      wxChar dbmsName[40];                             // Name of the dbms product
      wxChar dbmsVer[64];                              // Version # of the dbms product
      wxChar driverName[40];                           // Driver name
      wxChar odbcVer[60];                              // ODBC version of the driver
      wxChar drvMgrOdbcVer[60];                        // ODBC version of the driver manager
      wxChar driverVer[60];                            // Driver version
      wxChar serverName[80];                           // Server Name, typically a connect string
      wxChar databaseName[128];                        // Database filename
      wxChar outerJoins[2];                            // Indicates whether the data source supports outer joins
      wxChar procedureSupport[2];                      // Indicates whether the data source supports stored procedures
      wxChar accessibleTables[2];                      // Indicates whether the data source only reports accessible tables in SQLTables.
      UWORD  maxConnections;                           // Maximum # of connections the data source supports
      UWORD  maxStmts;                                 // Maximum # of HSTMTs per HDBC
      UWORD  apiConfLvl;                               // ODBC API conformance level
      UWORD  cliConfLvl;                               // Indicates whether the data source is SAG compliant
      UWORD  sqlConfLvl;                               // SQL conformance level
      UWORD  cursorCommitBehavior;                     // Indicates how cursors are affected by a db commit
      UWORD  cursorRollbackBehavior;                   // Indicates how cursors are affected by a db rollback
      UWORD  supportNotNullClause;                     // Indicates if data source supports NOT NULL clause
      wxChar supportIEF[2];                            // Integrity Enhancement Facility (Referential Integrity)
      UDWORD txnIsolation;                             // Default transaction isolation level supported by the driver
      UDWORD txnIsolationOptions;                      // Transaction isolation level options available
      UDWORD fetchDirections;                          // Fetch directions supported
      UDWORD lockTypes;                                // Lock types supported in SQLSetPos
      UDWORD posOperations;                            // Position operations supported in SQLSetPos
      UDWORD posStmts;                                 // Position statements supported
      UDWORD scrollConcurrency;                        // Concurrency control options supported for scrollable cursors
      UDWORD scrollOptions;                            // Scroll Options supported for scrollable cursors
      UDWORD staticSensitivity;                        // Indicates if additions, deletions and updates can be detected
      UWORD  txnCapable;                               // Indicates if the data source supports transactions
      UDWORD loginTimeout;                             // Number seconds to wait for a login request
    } dbInf;

    // ODBC Error Inf.
    SWORD  cbErrorMsg;
    int    DB_STATUS;
    #ifdef __VMS
    wxChar errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN + 1];
    #else
    wxChar errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
    #endif
    wxChar errorMsg[SQL_MAX_MESSAGE_LENGTH];
    SQLINTEGER nativeError;
    wxChar sqlState[20];
    wxDb( const HENV &aHenv, bool FwdOnlyCursors = ( bool )wxODBC_FWD_ONLY_CURSORS );
    ~wxDb();
    bool         Open( const wxString& inConnectStr, bool failOnDataTypeUnsupported = true );
    bool         Open( const wxString& inConnectStr, SQLHWND parentWnd, bool failOnDataTypeUnsupported = true );
    bool         Open( const wxString &Dsn, const wxString &Uid, const wxString &AuthStr, bool failOnDataTypeUnsupported = true );
    bool         Open( wxDbConnectInf *dbConnectInf, bool failOnDataTypeUnsupported = true );
    bool         Open( wxDb *copyDb ); // pointer to a wxDb whose connection info should be copied rather than re-queried
    void         Close( void );
    bool         CommitTrans( void );
    bool         RollbackTrans( void );
    bool         DispAllErrors( HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT );
    bool         GetNextError( HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT );
    void         DispNextError( void );
    bool         CreateView( const wxString &viewName, const wxString &colList, const wxString &pSqlStmt, bool attemptDrop = true );
    bool         DropView( const wxString &viewName );
    bool         ExecSql( const wxString &pSqlStmt );
    bool         ExecSql( const wxString &pSqlStmt, wxDbColInf** columns, short& numcols );
    bool         GetNext( void );
    bool         GetData( UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SQLLEN FAR *cbReturned );
    bool         Grant( int privileges, const wxString &tableName, const wxString &userList = wxT( "PUBLIC" ) );
    int          TranslateSqlState( const wxString &SQLState );
    wxDbInf     *GetCatalog( const wxChar *userID = NULL );
    bool         Catalog( const wxChar *userID = NULL, const wxString &fileName = SQL_CATALOG_FILENAME );
    int          GetKeyFields( const wxString &tableName, wxDbColInf* colInf, UWORD noCols );

    wxDbColInf  *GetColumns( wxChar *tableName[], const wxChar *userID = NULL );
    wxDbColInf  *GetColumns( const wxString &tableName, UWORD *numCols, const wxChar *userID = NULL );

    int             GetColumnCount( const wxString &tableName, const wxChar *userID = NULL );
    const wxChar   *GetDatabaseName( void )  {return dbInf.dbmsName;}
    const wxString &GetDataSource( void )    {return dsn;}
    const wxString &GetDatasourceName( void ) {return dsn;}
    const wxString &GetUsername( void )      {return uid;}
    const wxString &GetPassword( void )      {return authStr;}
    const wxString &GetConnectionInStr( void )  {return inConnectionStr;}
    const wxString &GetConnectionOutStr( void ) {return outConnectionStr;}
    bool            IsOpen( void )           {return dbIsOpen;}
    bool            OpenedWithConnectionString( void ) {return dbOpenedWithConnectionString;}
    HENV            GetHENV( void )          {return henv;}
    HDBC            GetHDBC( void )          {return hdbc;}
    HSTMT           GetHSTMT( void )         {return hstmt;}
    int             GetTableCount()        {return nTables;}  // number of tables using this connection
    wxDbSqlTypeInfo GetTypeInfVarchar()    {return typeInfVarchar;}
    wxDbSqlTypeInfo GetTypeInfInteger()    {return typeInfInteger;}
    wxDbSqlTypeInfo GetTypeInfFloat()      {return typeInfFloat;}
    wxDbSqlTypeInfo GetTypeInfDate()       {return typeInfDate;}
    wxDbSqlTypeInfo GetTypeInfBlob()       {return typeInfBlob;}
    wxDbSqlTypeInfo GetTypeInfMemo()       {return typeInfMemo;}

    // tableName can refer to a table, view, alias or synonym
    bool         TableExists( const wxString &tableName, const wxChar *userID = NULL,
                              const wxString &tablePath = wxEmptyString );
    bool         TablePrivileges( const wxString &tableName, const wxString &priv,
                                  const wxChar *userID = NULL, const wxChar *schema = NULL,
                                  const wxString &path = wxEmptyString );
    const wxString  SQLTableName( const wxChar *tableName );
    const wxString  SQLColumnName( const wxChar *colName );

    void         LogError( const wxString &errMsg, const wxString &SQLState = wxEmptyString ) { logError( errMsg, SQLState ); }
    void         SetDebugErrorMessages( bool state ) { silent = !state; }
    bool         SetSqlLogging( wxDbSqlLogState state, const wxString &filename = SQL_LOG_FILENAME,
                                bool append = false );
    bool         WriteSqlLog( const wxString &logMsg );

    wxDBMS       Dbms( void );
    bool         ModifyColumn( const wxString &tableName, const wxString &columnName,
                               int dataType, ULONG columnLength = 0,
                               const wxString &optionalParam = wxEmptyString );
    bool         FwdOnlyCursors( void )  {return fwdOnlyCursors;}
    wxString     EscapeSqlChars( const wxString& value );
    void         incrementTableCount() { nTables++; return; }
    void         decrementTableCount() { nTables--; return; }

};  // wxDb

struct wxDbList {
  wxDbList *PtrPrev;       // Pointer to previous item in the list
  wxString  Dsn;           // Data Source Name
  wxString  Uid;           // User ID
  wxString  AuthStr;       // Authorization string (password)
  wxString  ConnectionStr; // Connection string used instead of DSN
  wxDb     *PtrDb;         // Pointer to the wxDb object
  bool      Free;          // Is item free or in use?
  wxDbList *PtrNext;       // Pointer to next item in the list
};

wxDb  WXDLLIMPEXP_ODBC *wxDbGetConnection( wxDbConnectInf *pDbConfig, bool FwdOnlyCursors = return );
bool  WXDLLIMPEXP_ODBC  wxDbFreeConnection( wxDb *pDb );
void  WXDLLIMPEXP_ODBC  wxDbCloseConnections( void );
int   WXDLLIMPEXP_ODBC  wxDbConnectionsInUse( void );


const wxChar WXDLLIMPEXP_ODBC *
wxDbLogExtendedErrorMsg( const wxChar *userText,wxDb *pDb,const wxChar *ErrFile,int ErrLine );

bool WXDLLIMPEXP_ODBC
wxDbSqlLog( wxDbSqlLogState state, const wxString &filename = SQL_LOG_FILENAME );


bool WXDLLIMPEXP_ODBC wxDbGetDataSource( HENV henv, wxChar *Dsn, SWORD DsnMaxLength, wxChar *DsDesc,
                   SWORD DsDescMaxLength, UWORD direction = SQL_FETCH_NEXT );

#endif // _WX_DB_H_

